Reactive airway dysfunction syndrome (RADS) is a type of non-immunologically mediated asthma-like disease. It usually occurs after a massive exposure to an irritating substance in the atmosphere in the form of smoke. fumes. gases. https://www.roneverhart.com/MagnaFlow-2007-2008-Mitsubishi-Outlander-OEM-Grade-Federal-EPA-Compliant-Manifold-Catalytic-Converter/